[1] Washington Univ, Sch Med, Howard Hughes Med Inst, Dept Pathol & Immunol, St Louis, MO 63110 USA
[2] Genentech Inc, Dept Discovery Immunol, San Francisco, CA 94080 USA
[3] Univ Chicago, Dept Human Genet, Chicago, IL 60637 USA
[4] Univ Chicago, Inst Syst & Genom Biol, Chicago, IL 60637 USA
[5] NYU, Howard Hughes Med Inst, Skirball Inst Biomol Med, New York, NY 10016 USA
[6] Genentech Inc, Dept Bioinformat & Computat Biol, San Francisco, CA 94080 USA
[7] Univ Texas MD Anderson Canc Ctr, Dept Immunol, Houston, TX 77054 USA
[8] Virginia Commonwealth Univ, Sch Med, Dept Physiol & Biophys, Richmond, VA 23219 USA